\documentclass[11pt]{article}
\usepackage[T1]{fontenc}
\usepackage{fourier}
\usepackage[a4paper,margin=15mm]{geometry}
\usepackage{tikzphysics}
\pagestyle{empty}
\begin{document}
\section*{Document font and picture font inheritance}
\foreach \size/\title in {\footnotesize/Small,\normalsize/Normal,\Large/Large}{
\subsection*{\title}
\begin{tikzpicture}[font=\size]
\node[polar element,element inner radius=1cm,element outer radius=1.2cm,
 element delta angle=55,show dimensions] at (0,0) {};
\node[rectangular element,show dimensions] at (3,.5) {};
\node[pressure element] at (6,0) {$A$};
\end{tikzpicture}\par\medskip}
\section*{Individual node font}
\begin{tikzpicture}
\node[rectangular element,font=\Large,show dimensions] (A) {};
\node[rectangular strip,font=\footnotesize,show dimensions] at (5,0) {};
\end{tikzpicture}
\section*{Native TikZ material styles}
\begin{tikzpicture}[font=\small]
\node[polar element,pattern=dots] at (0,0) {};
\node[below=4mm] at (0,-2) {\texttt{pattern=dots}};
\node[polar element,pattern=north east lines,pattern color=gray]
  at (5.5,0) {};
\node[below=4mm] at (5.5,-2) {\texttt{north east lines}};
\node[polar element,pattern=horizontal lines,dashed] at (0,-5) {};
\node[below=4mm] at (0,-7) {\texttt{horizontal lines, dashed}};
\node[polar element,pattern=none,fill=gray!18] at (5.5,-5) {};
\node[below=4mm] at (5.5,-7) {\texttt{pattern=none, fill=gray!18}};
\end{tikzpicture}
\end{document}